Strong-current pulse electron beam incident angle two-dimensional measurement probe, device and method

A high-current pulse and measuring probe technology, which is applied in the field of electron beam-matter interaction research, can solve problems such as unmeasured incident energy, structural limitations, and difficulty in designing and processing filter arrays, achieving good time response and satisfactory consistency , the effect of optimizing the structure

Inactive Publication Date: 2016-02-03
NORTHWEST INST OF NUCLEAR TECH
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Problems solved by technology

However, the changed incident energy cannot be measured, and it can only be assumed that its energy remains unchanged for data processing.
(3) Limited by the structure, the design and processing of the filter array is difficult
But from the second point, it can be seen that the more layers of filters, the more errors will be introduced at the same time

Method used

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  • Strong-current pulse electron beam incident angle two-dimensional measurement probe, device and method
  • Strong-current pulse electron beam incident angle two-dimensional measurement probe, device and method
  • Strong-current pulse electron beam incident angle two-dimensional measurement probe, device and method

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Embodiment Construction

[0038] see Figure 1-7 , a probe for measuring the two-dimensional distribution of the incident angle of a high-current pulsed electron beam, including a stainless steel anode 1, a plexiglass module holder 3, a simple Faraday cup, (N+1) SSMA-type coaxial adapters, and N Attenuation sheet, N≥2; plexiglass module holder body 3 is arranged in stainless steel anode 1; stainless steel anode 1 includes collimating plate 10, and collimation plate 10 is positioned at the front of plexiglass module holder body 3; plexiglass module holder body 3 is provided with (N +1) Faraday cage installation holes distributed in a honeycomb shape. A simple Faraday cage is placed in the center installation hole, and N Faraday cages with the same structure are placed in the remaining Faraday cage installation holes; The graphite collector 7, the plexiglass insulating sleeve 5 and the stainless steel shielding cylinder 4; the simple Faraday cylinder is composed of the high-purity graphite collector 7; t...

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Abstract

The invention relates to a strong-current pulse electron beam incident angle two-dimensional measurement device and method. The device comprises a stainless steel anode, an organic glass module holding body, one simple Faraday cylinder, (N+1) SSMA-type coaxial adapters, and N attenuation pieces, wherein N is not less than two. The device and method provided by the invention can effectively overcome the difficulties of precise centering and signal crosstalk in the research of an strong-current pulse electron beam incident angle.

Description

technical field [0001] The invention belongs to the field of research on the interaction between electron beams and substances, and relates to a method and device for measuring the distribution of incident angles when electron beams bombard the surface of substances when high-current electron beams interact with substances, and in particular to a The invention relates to a measuring device and a measuring method for the two-dimensional distribution of the incident angle of a high-current pulsed electron beam. Background technique [0002] When the high-current electron beam interacts with matter, the incident angle distribution is an important parameter. In order to obtain this parameter, the internal filter Faraday cage is currently used for measurement. The principle is: the electron beam is incident on three graphite filters of different thicknesses arranged in the axial direction, and the total incident electron beam current and the electron beam current passing through ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/29
Inventor 胡杨杨海亮孙剑锋孙江张鹏飞
Owner NORTHWEST INST OF NUCLEAR TECH
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